ELSA TanGo 1000, Руководство пользователя

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Appendix: Status Display and Trouble Shooting
ELSA TanGo 1000
Operating Manual © 1997 ELSA GmbH
33
Normal connections (Dial-up and fixed D channel connections):
State of LED Status
Off
Blinking (quickly)
On S
0
bus not activated
S
0
bus active, no TEI assigned
S
0
bus active, TEI assigned
Yellow LED
The yellow LED shows the connection status of the ISDN terminal adapter:
State of LED Description
Off
Blinking slowly (once per
sec.) (total 2 to 3x)
Blinking quickly (3x per
sec.)
Constantly lit No call, no connection
Incoming call, terminal device is not responsible or terminal
unit establishes connection itself
Valid call pending, not (yet) answered
Connection being/is established
V.24 display
The V.24 display shows the status of the V.24 connection to the computer:
LED Description
TxD (D1) Data or command to ISDN terminal adapter
RxD (D2) Data or signals from ISDN terminal adapter
DTR (S1) Computer operational (see also command
AT&D
)
RTS (S2) Switch on transmit (see also command
AT\Q
)
CTS (M2) ISDN terminal adapter clear to send (see also commands
AT\D
and
AT\Q
)
DCD (M5) Connection established (see also command
AT&C
)
LED lights up red for insecure or fax connections
LED lights up green for secure connections